SMC EX600-DXPD 16-Channel PNP Digital Input Module — M12, IP67 | EX600 Fieldbus System
SMC
SMC EX600 Series — Digital Input Unit
EX600-DXPD · 16-Channel PNP Digital Input Module
Add 16 digital inputs to any EX600 fieldbus manifold. PNP, 8 × M12 5-pin connectors (2 inputs per connector), IP67. Connect auto switches, proximity sensors, photoelectric switches, and limit switches directly to the EX600 network node — no separate PLC I/O card required.
At a Glance
| SKU | EX600-DXPD |
| Function | Digital Input Unit for EX600 fieldbus platform |
| Input Type | PNP (Source) |
| Number of Inputs | 16 inputs (2 inputs per connector) |
| Input Connector | M12 5-pin socket × 8 (SPEEDCON compatible). M12 4-pin connectors also accepted. |
| Supplied Voltage | 24 VDC (supplied from power supply for control/input) |
| Max Sensor Supply Current | 0.5A per connector / 2A per unit |
| Input Resistance | 2.7 kΩ |
| Rated Input Current (at 24 VDC) | 9 mA or less |
| ON Voltage | 17V or more (between input terminal and 0V) |
| OFF Voltage | 5V or less (between input terminal and 0V) |
| Protection | Short-circuit protection |
| Open-Circuit Detection | Not available on this model (see EX600-DXPC1 for open-circuit detection with M8 connectors) |
| Internal Current Consumption | 70 mA or less |
| LED Indication | Green = Input ON | Red = Short circuit detected at sensor power supply |
| Enclosure | IP67 (manifold assembly) |
| Operating Temperature | –10°C to 50°C |
| Vibration Resistance | 147 m/s², 3 times in each direction X/Y/Z (de-energized) |
| Standards | CE / UKCA marking, UL (CSA) |
| NPN Equivalent | EX600-DXND (16 inputs, NPN, 8 × M12) |
| Weight | 340 g |
Why the EX600-DXPD
The EX600-DXPD adds 16 PNP digital input channels to any EX600 fieldbus manifold, bringing cylinder position feedback, proximity sensors, photoelectric switches, and limit switches onto the same network node as the solenoid valve outputs. Instead of running sensor wires back to PLC input cards in the control panel, the DXPD collects those signals at the manifold and passes them through the SI unit's fieldbus connection — eliminating the need for separate PLC I/O modules, terminal blocks, and the associated wiring.
Each of the 8 M12 5-pin connectors carries 2 inputs, 24V supply, and 0V — so a standard 3-wire PNP auto switch or proximity sensor connects directly with a single off-the-shelf M12 cordset. The unit supplies up to 0.5A per connector (2A total), which powers the connected sensors directly without a separate sensor power bus. Short-circuit protection per channel ensures a single sensor fault doesn't take down the entire input module.
The DXPD snaps onto the EX600 manifold alongside the SI unit, digital output modules, analog I/O modules, and IO-Link master modules in any order — up to 9 I/O units per manifold. At IP67, the entire assembly can mount on the machine frame without an enclosure, keeping the digital inputs physically close to the sensors they monitor.
EX600 Digital Input Unit — All Variants
| Model | Type | Inputs | Connector | Open-Circuit Detection | Enclosure | Weight |
|---|---|---|---|---|---|---|
| EX600-DXPB | PNP | 8 | M12 5-pin × 4 | — | IP67 | 300 g |
| EX600-DXPC | PNP | 8 | M8 3-pin × 8 | — | IP67 | 275 g |
| EX600-DXPC1 | PNP | 8 | M8 3-pin × 8 | ✓ | IP67 | 275 g |
| EX600-DXPD (this product) | PNP | 16 | M12 5-pin × 8 | — | IP67 | 340 g |
| EX600-DXPE | PNP | 16 | D-sub 25-pin | — | IP40 | 300 g |
| EX600-DXPF | PNP | 16 | Spring terminal 32-pin | — | IP40 | 300 g |
NPN equivalents (EX600-DXNB, DXNC, DXND, DXNE, DXNF) are available for all models. M12 and M8 connector variants achieve IP67; D-sub and spring terminal variants are IP40 (in-panel only).
Typical Input Devices
Auto Switches
2-wire and 3-wire cylinder position sensors (D-M9 series, D-A series)
Proximity Sensors
Inductive, capacitive, and magnetic — PNP 3-wire with M12 connector
Photoelectric Switches
Through-beam, retro-reflective, and diffuse with PNP switch output
Limit Switches
Mechanical and non-contact limit switches with discrete output
Pressure Switches
SMC PSE/ISE series and equivalent — discrete switch output channel
Flow Switches
SMC PF series and equivalent — discrete output for flow/no-flow detection
M12 Connector Pin Assignment
Each M12 5-pin socket on the EX600-DXPD carries 2 input channels plus 24V sensor supply power:
| Pin | Signal |
|---|---|
| 1 | +24V (control and input supply) |
| 2 | Input 1 (even-numbered input) |
| 3 | 0V (control and input supply) |
| 4 | Input 2 (odd-numbered input) |
| 5 | Not connected (shield/reserved) |
M12 4-pin connectors can also be connected (pin 5 unused). Standard 3-wire PNP sensors connect to pins 1 (+24V), 3 (0V), and 2 or 4 (signal).
Required Components
The EX600-DXPD is an I/O module — it requires an EX600 SI unit and endplate to function. A minimum working EX600 assembly with the DXPD consists of:
| Component | Example | Notes |
|---|---|---|
| SI Unit | EX600-SEN7 (EtherNet/IP) | One per manifold. The DXPD is compatible with all EX600 SI units (any protocol). |
| End Plate (D side) | EX600-ED3 | Power supply connection. |
| Digital Input Unit (this product) | EX600-DXPD | Snaps onto the manifold in any position. Up to 9 I/O units per SI unit. |
| Sensor Cables | Standard M12 4- or 5-pin cordsets | One per sensor. 2 sensors per connector if using both input channels. |
| Seal Caps | EX9-AWTS (M12) | Required on all unused connectors for IP67. |
| Valve Manifold (optional) | SS5Y5-xxxx | The DXPD can be used with or without a valve manifold — the EX600 can serve as a standalone distributed I/O node. |
Building an EX600 Assembly?
Automation Distribution stocks the EX600-DXPD and the full range of EX600 digital input, output, analog, and IO-Link modules alongside all compatible SI units, endplates, valve plates, and SY/JSY/SV/VQC valve manifolds. Contact our team for help configuring the right I/O mix for your application.
Contact Application EngineeringFrequently Asked Questions
What is the difference between the EX600-DXPB and EX600-DXPD?
The EX600-DXPB has 8 inputs (4 × M12 connectors, 2 inputs each) and the EX600-DXPD has 16 inputs (8 × M12 connectors, 2 inputs each). Both are PNP, IP67, and use M12 5-pin sockets. Choose based on how many sensor inputs you need on that module.
Can I connect a 2-wire auto switch to the EX600-DXPD?
Yes. 2-wire and 3-wire PNP sensors are both compatible. For 2-wire sensors, connect to the +24V (pin 1) and input signal (pin 2 or 4) pins. The 9mA rated input current is compatible with standard SMC auto switches.
Can I use the EX600-DXPD without a valve manifold?
Yes. The EX600 platform can function as a standalone distributed I/O node without a valve manifold. You need the SI unit, end plate, and the DXPD module — the valve plate and valve manifold are optional. This is useful for applications that need distributed sensor inputs at the machine but don't have valves at that location.
How many digital input modules can I add to one EX600?
Up to 9 I/O units can be connected to one SI unit in any combination. You could have 9 DXPD modules for 144 total digital inputs, or mix digital input, output, analog, and IO-Link modules as needed.
Does the EX600-DXPD work with all EX600 SI units?
Yes. The DXPD is compatible with every EX600 SI unit regardless of protocol — EtherNet/IP (EX600-SEN7/8), PROFINET (EX600-SPN3/4/31), EtherCAT (EX600-SEC3/4), PROFIBUS-DP, CC-Link, DeviceNet, and POWERLINK. The I/O modules are protocol-independent.
What is the difference between the M12 connector (DXPD) and D-sub connector (DXPE) versions?
The EX600-DXPD uses 8 individual M12 5-pin sockets and is rated IP67 — designed for on-machine mounting. The EX600-DXPE uses a single D-sub 25-pin connector and is rated IP40 — designed for in-panel mounting where sensors are wired through a connector box or harness. Both provide 16 PNP inputs.
Specifications sourced from SMC catalog CAT.E02-24H and operation manual EXxx-OMN0036. Subject to change without notice. Automation Distribution is an authorized SMC distributor.
- Input Type:
- PNP
- Number Of Inputs, Open Circuit Detection,And Connector:
- Number Of Inputs:16 Inputs